• Chhaya Bhatt
• Anushree Saha
• Suryakant Manikpuri
• Manish Kumar Rai

A spectrophotometric method has been developed based on the modification of the Fujiwara reaction for the determination of trichlorfon at ppm level. Trichlorfon on its alkaline hydrolysis gives chloroform, which react with pyridine to produce pink color. In the present method the pink color acquired in the preceding reaction is discharged with a few drops of acetic acid, followed by the addition of p-nitro aniline reagent, which produces a yellow color dye. The absorption maxima of the yellow color dye formed is measured at 430 nm. Beer’s law is obeyed in the range of 2.0-5.0 µg/10 mL of Trichlorfon. The molar absorptivity of the colored system is 4×10-5 L mol-1cm-1 and Sandell’s sensitivity is 0.20×107 µg cm-2. This method is free from interference by other pollutants and can be successfully applied for the determination of trichlorfon in various environmental samples.

Pesticide, Trichlorfon, Detection Techniques, Environmental Samples.

"SPECTROPHOTOMETRIC DETERMINATION OF TRICHLORFON INSECTICIDE AND ITS APPLICATION IN AGRICULTURAL AND ENVIRONMENTAL SAMPLES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 6, page no.e69-e77, June-2022, Available :http://www.jetir.org/papers/JETIR2206407.pdf

"SPECTROPHOTOMETRIC DETERMINATION OF TRICHLORFON INSECTICIDE AND ITS APPLICATION IN AGRICULTURAL AND ENVIRONMENTAL SAMPLES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 6, page no. ppe69-e77, June-2022, Available at : http://www.jetir.org/papers/JETIR2206407.pdf